function doOpen( a, b, c )
		{
		   PPSwin = window.open( a, b, c );
		}
	function instPop() {
		var popup_page = 'impt_inst.html';

		doOpen(popup_page,'impt_inst','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=1,width=480,height=280,left=120,top=20');

	}